What does it mean if a word is in the dictionary?
What does it mean if a word is in the dictionary? The criteria In other words, our lexicographers add a word to the dictionary when they determine that: It's a word that's used by a lot of people. It's used by those people in largely the same way. It's likely to stick around. And it's useful for a general audience.
What is the longest word in the English language?
The longest English word is pneumonoultramicroscopicsilicovolcanoconiosis, which is forty-five letters long and refers to a type of lung disease. If you're including technical words, the longest English word— and longest word in the world—is this word, a chemical name for a protein that is 189,819 letters long.